{"product_id":"id-hq-series-coil-ga7020-ga9020-7-angle-grinder-spare-part-makita-type-30378","title":"ID HQ SERIES COIL [GA7020] [GA9020] [7\"] ANGLE GRINDER SPARE PART [Makita Type] - 30378","description":"\u003ch2\u003eRestore Full Power. Rebuild Smarter. Built to Last.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eID HQ Series Field Coil\u003c\/strong\u003e is a precision-engineered \u003cstrong\u003ereplacement coil spare part\u003c\/strong\u003e designed for \u003cstrong\u003eMakita-type 7-inch angle grinders\u003c\/strong\u003e, specifically compatible with models \u003cstrong\u003eGA7020 and GA9020\u003c\/strong\u003e. Built with \u003cstrong\u003ehigh-grade copper wire windings\u003c\/strong\u003e, a robust \u003cstrong\u003emagnetic core\u003c\/strong\u003e, and advanced \u003cstrong\u003ethermal insulation\u003c\/strong\u003e, this \u003cstrong\u003epower tool coil\u003c\/strong\u003e delivers reliable electromagnetic performance and efficient energy conversion, restoring your grinder to full operating capacity with minimal downtime.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 24px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 40%; text-align: left; padding: 10px 12px; background-color: #000000; border: 1px solid #e0e0e0; font-size: 1em; font-weight: bold; color: #ffffff;\"\u003eKey Features\u003c\/th\u003e\n\u003cth style=\"width: 40%; text-align: left; padding: 10px 12px; background-color: #000000; border: 1px solid #e0e0e0; font-size: 1em; font-weight: bold; color: #ffffff;\"\u003ePerfect For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; vertical-align: top; text-align: left; padding: 10px 12px; border: 1px solid #e0e0e0;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003eMakita GA7020 \u0026amp; GA9020\u003c\/strong\u003e 7\" angle grinders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-temperature resistant\u003c\/strong\u003e insulation for sustained heavy-duty use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium copper wire windings\u003c\/strong\u003e for efficient electromagnetic field generation\u003c\/li\u003e\n\u003cli\u003eEngineered for \u003cstrong\u003eprecise energy transfer\u003c\/strong\u003e from electrical to mechanical output\u003c\/li\u003e\n\u003cli\u003eDrop-in \u003cstrong\u003eOEM-spec replacement\u003c\/strong\u003e — no modification required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 40%; vertical-align: top; text-align: left; padding: 10px 12px; border: 1px solid #e0e0e0;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eRepairing a \u003cstrong\u003eburned-out or damaged angle grinder coil\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkshop and jobsite maintenance\u003c\/strong\u003e professionals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower tool repair technicians\u003c\/strong\u003e servicing Makita-type machines\u003c\/li\u003e\n\u003cli\u003eContractors needing a \u003cstrong\u003efast, cost-effective grinder repair\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Compatibility with GA7020 \u0026amp; GA9020:\u003c\/strong\u003e This field coil is specifically engineered to match the internal dimensions and electrical specifications of \u003cstrong\u003eMakita-type 7-inch angle grinders\u003c\/strong\u003e (models GA7020 and GA9020), ensuring a secure fit, proper alignment, and immediate operational restoration without custom adaptation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Grade Copper Wire Windings:\u003c\/strong\u003e The coil is wound with \u003cstrong\u003eprecision-grade copper wire\u003c\/strong\u003e that offers excellent electrical conductivity, minimising resistance losses and heat build-up during prolonged operation — critical for tools running continuous grinding, cutting, or surface preparation tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced High-Temperature Insulation:\u003c\/strong\u003e The \u003cstrong\u003emulti-layer insulation system\u003c\/strong\u003e surrounding the windings is rated for sustained \u003cstrong\u003ehigh-temperature environments\u003c\/strong\u003e, protecting the coil from thermal degradation even under demanding conditions such as prolonged heavy grinding or repetitive load cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised Magnetic Core for Efficient Energy Conversion:\u003c\/strong\u003e At the heart of this coil is a \u003cstrong\u003elaminated magnetic core\u003c\/strong\u003e designed to maximise electromagnetic flux and minimise eddy current losses, translating directly into \u003cstrong\u003estronger motor torque, stable RPM output\u003c\/strong\u003e, and reduced energy waste during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-Specification Replacement Part — Part No. 30378:\u003c\/strong\u003e Manufactured to \u003cstrong\u003eoriginal equipment manufacturer specifications\u003c\/strong\u003e, this coil (part number 30378) is a like-for-like replacement that restores the grinder to factory performance standards, making it the preferred choice for \u003cstrong\u003eprofessional repair technicians and tool service workshops\u003c\/strong\u003e alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis coil is supplied as a \u003cstrong\u003ecomplete field coil assembly\u003c\/strong\u003e ready for installation, and is backed by ID HQ Series quality standards to ensure consistent performance across all compatible Makita-type angle grinder platforms.\u003c\/p\u003e\n\u003c!-- CSS Styles for the FAQ Section --\u003e\n\u003cstyle\u003e\n.faq-section-styled {\n  font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n  margin-top: 40px;\n}\n.faq-section-styled h2 {\n  font-size: 2em;\n  font-weight: 700;\n  color: #1C2228;\n  border-bottom: 2px solid #F4F4F4;\n  padding-bottom: 15px;\n  margin-bottom: 30px;\n}\n.faq-section-styled details {\n  background-color: #f9f9f9;\n  border: 1px solid #e9e9e9;\n  border-radius: 8px;\n  margin-bottom: 15px;\n  overflow: hidden;\n}\n.faq-section-styled summary {\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  padding: 20px;\n  font-weight: 600;\n  font-size: 1.1em;\n  color: #1C2228;\n  cursor: pointer;\n  list-style: none;\n}\n.faq-section-styled summary::-webkit-details-marker {\n  display: none;\n}\n.faq-section-styled .question-title {\n  display: flex;\n  align-items: center;\n}\n.faq-section-styled .question-title::before {\n  content: '\\25B6';\n  margin-right: 15px;\n  font-size: 0.8em;\n  color: #1C2228;\n}\n.faq-section-styled summary::after {\n  content: '+';\n  font-size: 1.8em;\n  font-weight: 300;\n  color: #1C2228;\n  transition: transform 0.2s ease-in-out;\n}\n.faq-section-styled details[open] summary::after {\n  transform: rotate(45deg);\n}\n.faq-section-styled .faq-answer-content {\n  background-color: #FFFFFF;\n  padding: 20px 20px 20px 55px;\n  border-top: 1px solid #e9e9e9;\n}\n.faq-section-styled .faq-answer-content p {\n  margin: 0;\n  font-size: 1em;\n  line-height: 1.7;\n  color: #2E2E2E;\n  text-align: left;\n}\n.faq-section-styled .faq-answer-content p strong {\n    color: #1C2228;\n}\n\u003c\/style\u003e\n\u003cdiv class=\"faq-section-styled\"\u003e\n\u003ch2\u003eGeneral Purchase \u0026amp; Comparison Queries\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eIs this coil compatible with my Makita GA7020 or GA9020 angle grinder?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eYes. The \u003cstrong\u003eID HQ Series Field Coil (Part No. 30378)\u003c\/strong\u003e is specifically designed for \u003cstrong\u003eMakita-type 7-inch angle grinders\u003c\/strong\u003e, including the \u003cstrong\u003eGA7020 and GA9020\u003c\/strong\u003e models. It is built to OEM specifications for a direct, drop-in replacement with no modification required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eHow does this replacement coil compare to an original Makita coil?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eThe ID HQ Series coil is manufactured to \u003cstrong\u003eOEM-equivalent specifications\u003c\/strong\u003e, using \u003cstrong\u003ehigh-grade copper wire windings\u003c\/strong\u003e and a \u003cstrong\u003elaminated magnetic core\u003c\/strong\u003e that mirrors the performance of the original part. It offers a \u003cstrong\u003ecost-effective alternative\u003c\/strong\u003e to purchasing a brand-new tool while maintaining the same power output, torque characteristics, and thermal resistance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eIs it more economical to replace the coil or buy a new angle grinder?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eIn most cases, replacing the \u003cstrong\u003efield coil\u003c\/strong\u003e is significantly more economical than purchasing a new grinder. A burned or damaged coil is one of the most common causes of grinder failure, and swapping it out with a quality replacement like the \u003cstrong\u003eID HQ Series Part No. 30378\u003c\/strong\u003e restores full functionality at a fraction of the cost of a new machine — making it the preferred choice for \u003cstrong\u003eprofessional workshops and contractors\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003ch2\u003eProduct-Specific and Usage Queries\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eWhat is the function of a field coil in an angle grinder?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eThe \u003cstrong\u003efield coil\u003c\/strong\u003e is a critical motor component responsible for generating the \u003cstrong\u003eelectromagnetic field\u003c\/strong\u003e that drives the armature (rotor) of the angle grinder. It consists of \u003cstrong\u003ecopper wire windings\u003c\/strong\u003e wound around a \u003cstrong\u003elaminated magnetic core\u003c\/strong\u003e, converting electrical energy into a rotating magnetic field that produces the mechanical torque needed for grinding, cutting, and surface preparation tasks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eCan I install this coil myself, or do I need a professional technician?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eThis coil is designed as a \u003cstrong\u003edirect OEM-spec replacement\u003c\/strong\u003e, making installation straightforward for anyone with basic power tool repair experience. However, working on the internal motor components of power tools involves electrical components, so it is recommended that installation be carried out by a \u003cstrong\u003equalified power tool repair technician\u003c\/strong\u003e to ensure safety and correct reassembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eHow do I know if my angle grinder's field coil needs replacing?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eCommon signs of a failing or burned field coil include \u003cstrong\u003eloss of power or reduced RPM\u003c\/strong\u003e, the grinder failing to start, \u003cstrong\u003eunusual burning smells\u003c\/strong\u003e, visible scorch marks on the motor windings, or the tool tripping circuit breakers repeatedly. If your GA7020 or GA9020 exhibits any of these symptoms, the field coil is a primary suspect and should be inspected and replaced with the \u003cstrong\u003eID HQ Series Part No. 30378\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003ch2\u003eProblem\/Solution-Oriented Queries\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eMy angle grinder has lost power and runs slowly — can a new coil fix this?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eYes, in many cases a \u003cstrong\u003edegraded or partially burned field coil\u003c\/strong\u003e is the direct cause of reduced power and sluggish RPM in angle grinders. When the \u003cstrong\u003ecopper wire windings\u003c\/strong\u003e suffer insulation breakdown or partial short-circuits, the electromagnetic field weakens, resulting in noticeably reduced torque. Replacing it with the \u003cstrong\u003eID HQ Series Field Coil (30378)\u003c\/strong\u003e will restore the full electromagnetic output and bring your \u003cstrong\u003eGA7020 or GA9020\u003c\/strong\u003e back to peak performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eMy grinder overheats quickly — is the coil the problem?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eExcessive heat build-up is often linked to \u003cstrong\u003einsulation failure in the field coil\u003c\/strong\u003e, which causes increased electrical resistance and energy loss as heat rather than mechanical output. The \u003cstrong\u003eID HQ Series coil\u003c\/strong\u003e features \u003cstrong\u003ehigh-temperature resistant insulation\u003c\/strong\u003e designed to withstand sustained heavy-duty operation, helping to prevent premature thermal failure and keeping your grinder running cooler for longer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eThe grinder works intermittently and cuts out under load — is this a coil issue?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eIntermittent operation and cut-outs under load are classic symptoms of a \u003cstrong\u003efailing field coil with partial winding damage\u003c\/strong\u003e. As the coil heats up under load, compromised insulation breaks down further, causing the motor to lose continuity temporarily. Replacing the coil with the \u003cstrong\u003eID HQ Series Part No. 30378\u003c\/strong\u003e — which is built with \u003cstrong\u003erobust copper windings and a high-integrity insulation system\u003c\/strong\u003e — will eliminate this fault and restore consistent, reliable performance to your \u003cstrong\u003eMakita-type GA7020 or GA9020\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Ideal Power Tools","offers":[{"title":"Default Title","offer_id":49792103907543,"sku":"30378","price":33.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/1962\/5687\/files\/IDHQSERIESCOIL_GA7020_GA9020_7INCH_ANGLEGRINDERSPAREPART_MakitaType_-30378.jpg?v=1789480635","url":"https:\/\/www.idealpowertools.com\/products\/id-hq-series-coil-ga7020-ga9020-7-angle-grinder-spare-part-makita-type-30378","provider":"Ideal Power Tools","version":"1.0","type":"link"}